'How to refresh token for GraphServiceClient

I have the following code:

builder.Services.AddAuthentication(OpenIdConnectDefaults.AuthenticationScheme)
    .AddMicrosoftIdentityWebApp(config.GetSection("AzureAd"))
    .EnableTokenAcquisitionToCallDownstreamApi(initialScopes)
    .AddMicrosoftGraph(config.GetSection("DownstreamApi"))
    .AddInMemoryTokenCaches();

I get GraphServiceClient using DI:

    private readonly GraphServiceClient _graphServiceClient;
    public MailsRangeModel(GraphServiceClient graphServiceClient)
    {
        _graphServiceClient = graphServiceClient;
    }

then I try to call

await _graphServiceClient.Me.MailFolders[folderId].Messages

I get the following error when token is expired:

ServiceException: Code: InvalidAuthenticationToken Message: Access token has expired or is not yet valid.

I know about ability to change token lifecycle on Active Directory, but I don't have access to it.

I just want to get new token instead of show this exception to client.

How to do it?

c++sharpmicrosoft-graph-apiopenidgraphserviceclient


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